Prism Portable Kettlebell Weight (0-15-Pounds), Yellow Safe and will not damage the surface of the facility nor your body like cast iron weights Portable and easy to transport Take your workouts and group training anywhere Fuctional Training with an unstable load recruits stabalizer muscles improving overall resilience Adjustable and Versatile with multiple weight capacities in one Handmade of Ballistic Nylon with puncture, tear and abrasion resistance